6.7.2 Performance Specifications (GT21) Item
Specifications
Display
Display device
256-color STN color LCD
Resolution 320 (W) x 240 (H) dots
Displayable area
98.0 (W) x 74.0 (H) mm
Backlight 1-color LED backlight (white)
Backlight brightness Can be set on the menu screen or GTWIN configuration settings.
(There are some minor variations in the backlight brightness.)
Contrast Can be adjusted on the menu screen or GTWIN configuration
settings.
Touch
switches
Touch switch
Analog touch switch (resistive film type)
Touch switch
operation 0.8 N or less
Life
1 million times or more (at 25
°
C) Note1)
Memory
F-ROM Screen data (base, keyboard), Flow display data: 6656 kbytes
Write device data: 64 kbytes
SRAM Note2)
Alarm history + Line graph sampling (27.5 kbytes)
Hold GT Device (2048 + 255 words)
Hold PLC Device (24 words)
Battery
Note3)
Backup
Built-in clock data
Alarm history data
Line graph sampling data
Internal device hold data
Hold PLC Device data
Life
Approx. 2 years (at 25 °C)
Note1) The touch position may shift due to aging variation. If the touch position has shifted greatly,
please adjust it.
Note2) A battery is necessary for SRAM backup.
Note3) Please purchase a battery separately.
The battery life is the value when no power at all is supplied. The actual lifetime may be shorter
according to the condition of use.
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